Roller-bearing.



J. A. mamans.'V

ROLLER BEARING.

APPLICATION FILED AUG.14. 1903. BENEWBD AUG. 28, 190s.

900,199, Patented 0ct.6,1908.

2 SHEETS-SHEET l.

V A. .f

w 7 6565: L7' rae I 5 J. A. PERKINS. ROLLER BEARING.

3. RENEWE Patented oct-9,1908.

- To all whom it may concern.'

have fopenings by which the oil v may retain the same level. f shows part of the rED STAES FICE.

JULIUS A. PERKINS, OF OMAHA, NEBRASKA, ASSIGNOR, BY MESNE ASSIGNMENTS, T0 UNITED STATES ROLIER BEARING COMPANY, OF NEW JERSEY.

OF JERSEY CITY, 'NEW JERSEY, A CORPORATION ROLLER-BE ARIN G.

Application filed August 14, 1908,

Be it known that I, JULIUs A. PERKINS, a citizen of the United States, residing at Omaha, in the county of' Douglas and State of Nebraska, have invented an Im rovement in Roller-Bearings, of which the fo lowing description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its aim to improve, strengthen, and simplify the construction of roller bearings of the class shown in United States Patent N o. 664,820, dated vDecember 25, 1900.

The box in the patent -referred to4 contains in its lower half a series of roller-sustaining arms or tracks that extend but artially across a residuum-receptacle in the ottom of said box. The-arms or tracks crossing the residuum-receptacle and unsupported at their' lower sides, had, to afford the necessary strength, to be made broader than desirable taking into consideration the length of the `box. Theoretically these arms or tracks should .be as narrow as practicable, and in decreasing their width, to insure the requiredstrength, I have rovided said receptacle with a series of we s rising from the bottom thereof, the upper edges of which are shaped and adapted to serve the Jpurposeof' tracks,'-the tracks being wider than the webs and preferably integral therewith. This construction, besides affording tracks of the desired width and strength also enables the strength of the lower half of the box to be in'- creased and the Weighthof the box to be reduced. i f

In the patent referred to the oil in the residuum-receptacle was free, as the bearing was run, to. slosh from end to end of the receptacle', and on meeting one end of the box the oil would slosh up and onto but a part `of thebearing-rollers and cage at one end thereof. By providing the box witha plurality of Webs standing in the residuum-receptacle the oil will be sloshed uniformly over the entire length of the bearing-rollers. The webs Figure l in elevation journal of a railroad car shaft with its box and intermediate arts in section; Fig.y 1a is an enlarge'd detairl) `showing parts of a cageend spindle and be ing roller, the spindle- .end being unsecured vin the cage end;'Fig. 2

Specification of Letters Patent.

i box and the exterior of in the box,

Patented Oct. 6, 1908.

Serial N o. 169,500.l Renewed August 28, 19089A Serial N o. 450,743.

dotted line. x', Fig. 1; Fig. 3 is a section through the box to the right of the dotted line x2, Fig. 1.

Referring to the drawing, A represents one of the journals of a car-axle A", having a reduced portion A and a tenon A2. The axle near the inner end of the journal is surrounded by a collar A3 the face of which next the box is provided with a space A4 leaving an exterior flange A5 and an interior flange A6.

The rbox B-has on its rear end a flange B', and inside said flange the box has extended from it and fast with relation thereto a ring B2 having its outer end flanged, the width of the flanged end of the ring at its outerend being such as collar, the inturned flange of the ring substantially touching the inner flange of the collar and preventing oil in the residuum chamber and substantially filling the same from escaping from the box. The exterior of the ring has an annular groove B4, and the flanged part of the box opposite said groove has an annular groove B5.

4 When the box and shaft are in running condition asV in the drawings, the outer flange of the box substantially overlaps the collar and nearly touches the saine, and the outer flange of the collar enters the s ac e between the inner side of the flange o the l the ring connected with the box, the end of the flange A5 terminating in the annular grooves B4 and B5 which constitute a Waterway having an outlet B below the journal.

The collar and box constructed' as described prevent water and dust entering the bearing so as to injure the bearing-rollers and journal, and at the same time the oil in theresidum-receptacle in the bottom of the box to be described is prevented from escaping from the box.

The underside of the box is chambered at C to constitute a residuum-receptacle, and this chamber, in practice filled with oil, has webs c5, c, 06X, integral therewith that are connected with the opposite sides c7, cs, of the box. The tracks c, c1", cX, at the upper edges of these webs extend alternately from opposite sides of the box and are wider in crosssection than'the thickness of each web. The tracks extend about the tops of the Webs for a, distance a little in excess of 90, so that the extremities n and n of the to nearly lill the space in the is a section through the box to the left of the alternate tracks pass beyond the vertical lines z, Figs. 2 and 3, or said extremities the central track 09 carried by web c5, said roller will get well onto the two tracks c1- and 010x.' When a bearing-roller is' moving down along the track c, Flg. 3, in the direction of the arrow, thesentlre lengthv of the roller except where in contact with said track runs over the narrow tops 4oli-the webs ce, 06X, thus enablin any -residuum on the roller to drop there rom into theJ residuum chamber. Just before the bearing-roller moving as described crosses the line z, Fig. 3, and while traveling over track c, it comes onto the ends of the two tracksclo, 010x, which sustain said bearing-roller at two points instead of one, 'and leave free of contact with either track c1", cox, that part of the bearing-roller that was sustained on the central track cg.

The omission of the tracks from the webs leaves spaces cl3 over which the rollers travel freely.` There are wide s aces between the tracks over which as t e bearing-rollers travel, each rollerbeing left free from external pressure, so that any residuum composed of dust and oil or other foreign matter that may accumulate on the bearing-rollers A in use may drop into said receptacle. It will be noticed that the entire length of each bearing-roller is exposed op osite a space as eachv bearing-roller 'in its p anetary motion passes about the journal.

It is of great importance that the surfaces of the bearin -rollers be kept clean and free from accum ations of any foreign material, for otherwise the bearing-rollers might be thrown out of alinement which would be destructive to the box.

The Webs have apertures 4 through them below the tracks so that -oil with which said rece tacle is filled may find its own' level. Furt er these webs are of great importance, for in the swaying or sloshing of the oil in the residuum-receptacle/ as the box is being run, the webs and the end of the box cause the oil to be sloshed uniforml over the bearing-rollers throughout their ength.

The box is closed at its outer end by a cap Dheld in lace by suitable bolts entering screw-threa ed portions of the box. The interior of the ca has a recess that receives a ring e2 provide in its face with an annular ,groove next the end of the journal, said groove receiving a series of balls e3 that serve to arrest and prevent wear due to endthrust.

The tenon at the end of the journalhas applied to it a controller D having a radial flange. The inner end of the controller substantially abuts the shoulder ax of thereduced part A of the journal. The shoulder rin e2, and the face of the disk d of thev journal, as well as the inner side of the radial flange of the controller D, each sustain an anti-friction washer d', d2, which may be of hard-fiber or equivalent material. The cage carrying the bearing-rollers f2 is com osed of two end rings f, f', united rigi y by bars fx, or in any usual manner. The outer ring f overlaps the ends of the bearing-rollers f2 surrounding spindles f3 held in the cage-ends. rI`he outer-ring enters loosel the s ace between the washers d and 2, and as a freedom of movement therein sufficient to provide for the fiotation of the cage between the journal and the box. Herein in order to enable the bearin -rollers to be brought closer to the car-whee which will be secured upon the shaft as closely as practicable to the collar A3 surrounding the same, I have rovided for controlling the extent of flotation ofthe cage from the outer end thereof.

The Washers d', dreceive the blows of the cage in its rotation with the journal, and are suitably retained in place on the reduced portion AX of the journal and on'the detachable controller D. The spindles f3 have their opposite ends tapered or beveled somewhat as at f6, and they are inserted in holes in the cage. A tapering abutment 25 is formed in that cage-'end against which may take seat the beveled end of the spindle first to be inserted in the cage, as for instance the left hand end of the spindle shown in Fig. 1. Outside the hole drilled through the opposite end of the cage I cut an annular groove 2,

,y see Fig. 1,`leaving a flange 3, and when the spindle has been mserted and the opposite end seated I turn over the flan e 3 onto the beveled end of the spindle, as s own in Fig. 1. This locks the spindles firmly against either longitudinal or rotary movement in the cage-end.

I have provided the bearing with an auxiliary frictional end-thrust device herein represented as a block or disk h preferably of brass, located centrally in the end-thrust rojects a litt e to the left, Fig. 1, beyond tlie face of said ring.

Now, in case the balls e3 should, due to carelessness in hardening, out into the face of the controller D', or into the groove in which the balls run, or for any reason the endthrust means should become inoperative, the end of the controller D and the end of the tenon, or either, may contact with the disk h so that the latter will constitute a frictional end-thrust device. Preferably the disk will be so ap lied that it may revolve under the action o the journal.

Having described my invention, what I claim and desire to secure by Letters Patent 1s v 1. A box having a residuuni-receptacle provided with a plurality of webs crossing the bei and connected lwith the op `planetary movement about the journal of the site sidesl provide for part ofx eredges with tracks ers travel in their thereof, said webs being their length at their up over Whlch bearing-ro axle, said tracks being so located as to enable the entire periphery of each bearingroller in its planetary movement to be exposled above a space of the residuum-receptac e.

2 A roller-bearing compxrising an axle having 4.a (jiournal, .a cagev avin bearing' rollers, an a boX having in its ower por` tion a series of webs crossing the bottom 0f JULIUS A. PERKINS.

Witness-es:

GEO. W. GREGORY, Y EDITH M. STODDAD. 

